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2012
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Questions Asked on March 27, 2012

A 0.100 M solution of K2SO4 would contain the same total ion concentration as which of the following solutions?A. 0.0800 M
1. 5 answers
2. asked by Michael
3. 10,659 views
A 70-kg fisherman in a 138-kg boat throws a package of mass m = 15 kg horizontally toward the right with a speed of vi = 4.8 m/s
1. 2 answers
2. asked by Taylor
3. 10,608 views
Calculate the change in PH when 6 ml of 0.1 M HCl is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in
1. 9 answers
2. asked by Mima
3. 8,488 views
Your friend of mass 80 kg can just barely float in freshwater.Calculate her approximate volume.
1. 2 answers
2. asked by Kristie
3. 6,948 views
Consider the reaction.4Fe(s) + 3O2(g) �¨ 2Fe2O3(s) If 0.500 mol of Fe reacts with 0.400 mol of O2, what are the limiting
1. 1 answer
2. asked by Lisa
3. 5,100 views
A distant galaxy is simultaneously rotating and receding from the earth. As the drawing shows, the galactic center is receding
1. 1 answer
2. asked by linds
3. 4,186 views
there are 4 white balls and 6 red balls in a sack. If two balls are taken out successively ( the first ball is not replaced )
1. 4 answers
2. asked by karlo
3. 4,149 views
$6300 is invested,part of it at 10% and part of it at 7%.For a certain year, the total yield is $534.00. How much was invested
1. 1 answer
2. asked by Anonymous
3. 3,785 views
An object located 18 cm from a convex mirror prodeucses a virtual image 9 cm from the mirror. What is the magnification of the
1. 2 answers
2. asked by Shirley
3. 3,718 views
givenPCl5(g)+heat <-> PCl3(g)+Cl2(g) a. addition of cl2 answer : would shift to the left b. increase in pressure: answer: ? c.
1. 1 answer
2. asked by hello
3. 3,432 views
Consider the cell: (Pt) H2/H+ || (Pt) H+/H2. In the anode half-cell, hydrogen gas at 1.0 atm is bubbled over a platinum
1. 3 answers
2. asked by Anonymous
3. 2,534 views
Consider the following reaction that occurs when natural gas is burned.CH4(g) + 2O2(g) �¨ CO2(g) + 2H2O(g) How many moles of
1. 4 answers
2. asked by Lisa
3. 2,461 views
When the following redox equation is balanced with smallest whole number coefficients, the coefficient for the hydrogen sulfate
1. 1 answer
2. asked by Admir
3. 2,401 views
LOGIC:I plus onehalf of square plus zero plus onehalf of diamond plus center of the sea plus threefourth of X plus zero plus
1. 2 answers
2. asked by sha
3. 2,269 views
i please need help with two short stories today.i write the first one here it be called Chicken-Hips. The women of the household
1. 9 answers
2. asked by Mohammad
3. 2,047 views
A garden roller is pulled with a force of 200N acting at an angle of 50* with the ground level.Find the effective force pulling
1. 3 answers
2. asked by Allwell
3. 2,009 views
tell which letter is a correct answer to the questions. a question may have more than one right answer.Which of the following
1. 8 answers
2. asked by SoccerStar
3. 1,817 views
Empirical formula 12.67 aluminum, 19.73 nitrogen, 67.60 oxygen
1. 1 answer
2. asked by Jeff
3. 1,709 views
Three identical uniform meter sticks are placed on the floor. The first stick lies along the y axis from y = 0.470 m to y = 1.47
1. 1 answer
2. asked by Julia
3. 1,683 views
what is the area of a isosceles trapezoid with legs of 15 feet and bases of 10 feet and 28 feet?
1. 1 answer
2. asked by Alyssa
3. 1,601 views
A 2.10 kg frictionless block is attached to an ideal spring with force constant 315N/m . Initially the block has velocity
1. 2 answers
2. asked by john
3. 1,596 views
Animals break down glucose (C6H12O6) as a source of energy according to the following overall reaction.C6H12O6(aq) + 6O2(g) �¨
1. 2 answers
2. asked by Lisa
3. 1,583 views
(True or False) One Kilowatt-hour is equal to the energy consumed by an electric device of 1 W for 1 hour
1. 7 answers
2. asked by MM
3. 1,495 views
The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.90 10-10 T.
1. 1 answer
2. asked by sarah
3. 1,486 views
In the library on a university campus, there is a sign in the elevator that indicates a limit of 16 persons. Further more, there
1. 1 answer
2. asked by Jane
3. 1,486 views
1-Becky made 4 quarts of chicken noodle soup in a big pot, then served -cup bowls of soup to 6 people. How much soup is left in
1. 6 answers
2. asked by dw
3. 1,469 views
How much CuSO4.5H20 would you need to prepare 6 grams of copper ammine complex, [Cu(NH3)]SO4.H20?There is only 1 ammonia
1. 1 answer
2. asked by Melanie
3. 1,460 views
The body in Fig. 10-37 is pivoted at O. Three forces act on it in the directions shown: FA = 13 N at point A, 6.4 m from O; FB =
1. 1 answer
2. asked by Timmy
3. 1,443 views
1. What is the pH of a solution whose [H3O+] is 1 X 10 -5 M?2. What is the [H3O+] concentration of a solution with a pH of 9? 3.
1. 1 answer
2. asked by John
3. 1,380 views
what is the lateral surface area of a right hexagonal prism whose base is a regular hexagon with sides measuring 8 incheslong
1. 1 answer
2. asked by mary
3. 1,351 views
The "Cult of Domesticity" most accurately describesA. The lifestyles of factory women B. The responsibilities of farm wives C.
1. 1 answer
2. asked by Anonymous
3. 1,310 views
A 14.6-g marble is dropped from rest onto the floor 1.23 m below. If the marble bounces straight upward to a height of 0.665 m,
1. 1 answer
2. asked by Brett
3. 1,308 views
Suppose that you balance a 6kg ball on the tip of your finger, which has an area of 1 cm^2Find the pressure on your finger.
1. 1 answer
2. asked by Kristie
3. 1,253 views
Suppose you lived on a planet with the same radius as the Earth, but it had a density 2.99 times Earth's density.Your weight
1. 2 answers
2. asked by John
3. 1,248 views
An object accelerates uniformly from rest and covers 8m in 2 seconds. What is the distance covered in the third second?
1. 1 answer
2. asked by Allwell
3. 1,235 views
At a local high school students were randomly assigned to one of two math teachers- Mrs smith and mrs jones. After the
1. 0 answers
2. asked by Anonymous
3. 1,226 views
I seriously don't understand this...i cant even begin to think of what to do please help...How many moles of Ba(OH)2 does it
1. 1 answer
2. asked by Mary
3. 1,221 views
I need some help with creating a simple, but automatic site status (uptime/downtime) monitor script in ColdFusion.Basically I
1. 0 answers
2. asked by Mike
3. 1,198 views
Do you see the job of the non-profit financial manager as getting easier or more difficult in the future?
1. 1 answer
2. asked by Alexis
3. 1,144 views
$6300 is invested,part of it at 10% and part of it at 7%.For a certain year, the total yield is $534.00. How much was invested
1. 2 answers
2. asked by Anonymous
3. 1,141 views
Vector D represents: URL is hereimgur dot com/AX4EN a) A+B b) A-B c) C+B d) A+C I chose answer A. Is that the correct answer?
1. 1 answer
2. asked by Jake
3. 1,119 views
The side length of square ABCD is 1 unit. Its diagonal, AC, is a side of square ACEF. Square ACEF is then enlarged by a scale
1. 1 answer
2. asked by Kayla
3. 1,116 views
Which of the following explains why a parachute makes a person falling from a great height fall more slowly?A)The parachute
1. 1 answer
2. asked by Mia
3. 1,097 views
Consider the two situations. In the first a machine must pull a box up a rough slope at constant speed. The mass of the box is
1. 1 answer
2. asked by Cody
3. 1,093 views
jack gives 50 kg jill a ride on a sleigh for 500 meters. he exerts a force of 45 Newtons on the rope of the sled at an angle of
1. 3 answers
2. asked by amy
3. 1,088 views
At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 24
1. 1 answer
2. asked by Reanna
3. 1,076 views
choose two phrases to form a sentence that correctly uses a word.a. forbearance is b. fervor is c. a belief that one cannot make
1. 7 answers
2. asked by SoccerStar
3. 1,048 views
Consider the following scenarios: (Please respond to each scenario)When we talk about "bad checks," are those always checks our
1. 0 answers
2. asked by Angie
3. 1,048 views
A rectangular lot is bordered on one side by a stream and on the other three sides by 360m of fencing. Find the dimensions of
1. 1 answer
2. asked by cs
3. 1,045 views
one sixth of five dozen computers were shiped how many were not shiped b what was the ratio of computers were shipped to those
1. 1 answer
2. asked by kristen
3. 1,045 views
How many moles of oxygen molecules would be produced from the decomposition of 25moles of potassium trioxochlorate (v) ?
1. 1 answer
2. asked by Mikeshontel
3. 1,041 views
the first three terms of an arithmetic sequence are x-2;2x+6 and 4x-8 respectively..determine.....(1)x (2) the 20th term (3) the
1. 1 answer
2. asked by t.t
3. 1,037 views
What quantity of heat is necessary to convert 50.0 g of ice at 0.0 C into steam 100,0 C? The heat of fusion is 80.0 cal/g, the
1. 1 answer
2. asked by Jill
3. 1,037 views
The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.90 10-10 T.
1. 1 answer
2. asked by jay
3. 1,036 views
Mendez Company currently produces and sells 20,000 units of product at a selling price of $10. The product has variable costs of
1. 1 answer
2. asked by Anonymous
3. 1,023 views
In a maths class of 13 students, 2/3 of boys and 1/4 of the girls love maths. How many girls love maths
1. 1 answer
2. asked by kayode
3. 1,022 views
What caused Jeffersonian Democracy to develop?
1. 1 answer
2. asked by Lala
3. 1,011 views
Design a procedure to separate a mixture of alcohols containing methanol, ethanol, 1-pentanol. Explain, with references to
1. 1 answer
2. asked by N
3. 997 views
A 5.0 L sample of gas at 1.0 atm and 25 degrees Celsius is compressed to 0.05 L and 5.0 atm. What is the temperature at this new
1. 2 answers
2. asked by Deana
3. 989 views
Based on the survey,the librarian predicts that about two-thirds of the students in seventh grade will not like the new
1. 2 answers
2. asked by Zoe
3. 971 views
translate to an inequality. the average speed s, was between 80 and 100 mph.translation 80 s 100
1. 1 answer
2. asked by john
3. 969 views
If 33.6 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? AND if
1. 2 answers
2. asked by Dr. David
3. 960 views
Please help/verify the answer.1. When you add vectors geometrically: a) vectors are aligned tail to tail b) vectors are aligned
1. 1 answer
2. asked by Melinda
3. 951 views
a) the time to leave _ _ _ _ _ tureb) what is a base word for "communication"?
1. 2 answers
2. asked by Curly Sue
3. 945 views
Explain what advantages we obtain by studying logic in terms of improving our reasoning.
1. 1 answer
2. asked by Gloria
3. 933 views
Suppose that SAT scores among U.S. college students are normally distributed with a mean of 450 and a standard deviation of 150.
1. 1 answer
2. asked by Chris
3. 928 views
Suppose that a sample of n = 1,600 tires of the same type are obtained at random from an ongoing production process in which 8%
1. 1 answer
2. asked by Chris
3. 913 views
Find the probability P(E or F) if E and F are mutually exclusive and P(E)=0.30 and P(F) =0.47
1. 1 answer
2. asked by Haley
3. 908 views
how do you put these fractions in order 1/4, 6/7, 3/5 from least to greatest
1. 1 answer
2. asked by tina
3. 894 views
A person exerts a horizontal force of F = 174 N in the test apparatus shown in the drawing. (h = 0.33 m.) Find the horizontal
1. 0 answers
2. asked by Will
3. 894 views
A solid object can be deformed in three fundamental ways. A roof is held up by support columns inside the building. The
1. 1 answer
2. asked by M
3. 867 views
Find the angular velocity of a clock's second hand and the linear speed and linear acceleration of a point on the second hand
1. 0 answers
2. asked by Alex
3. 859 views
Solve using the elimination method.Show work.If system has no solution state this or infinite solution8x+10y=-34 16x-5y=-43
1. 1 answer
2. asked by sherry
3. 856 views
A helium-ﬁlled balloon has a volume of 2.83 Lat 30 ◦ C. The volume of the balloon decreases to 2.35 L after it is placed
1. 1 answer
2. asked by Kellie
3. 854 views
The vector position of a 3.45 g particle moving in the xy plane varies in time according to1 = 3 + 3t + 2t2 where t is in
1. 0 answers
2. asked by Sheri
3. 852 views
The vector position of a 3.45 g particle moving in the xy plane varies in time according to1 = 3 + 3t + 2t2 where t is in
1. 0 answers
2. asked by Sheri
3. 848 views
Graph these points.Angle DFG has vertices D (–2, 4), F (–3, 1), and G (–1, 2). Find the vertices of the image after the
1. 2 answers
2. asked by Izzy
3. 844 views
How many mL of .150 M sodium hydroxide is required to neutralize 25 mL of .125 M of phosphoric acid?
1. 1 answer
2. asked by Kate
3. 843 views
the first state constitutions adopted after independence?A.Placed most authority with the State governors B. provided for
1. 9 answers
2. asked by MM
3. 841 views
The vector position of a 3.45 g particle moving in the xy plane varies in time according to1 = 3 + 3t + 2t2 where t is in
1. 1 answer
2. asked by Sheri
3. 838 views
The vector position of a 3.45 g particle moving in the xy plane varies in time according to1 = 3 + 3t + 2t2 where t is in
1. 1 answer
2. asked by Sheri
3. 838 views
A convex lens is needed to produce an image that is 0.55 times the size of the object and located 30 cm from the lens on the
1. 1 answer
2. asked by Anonymous
3. 837 views
A 2.5 L sample of gas at 25 degrees Celsius is heated to 50 degrees celcius at constant pressure. What would the volume be at 50
1. 1 answer
2. asked by Deana
3. 834 views
Point A=(1,3,4) and point B=(-2,2,0). Determine AB.a) (3,1,4) b) (-3,-1,-4) c) (-1,5,4) d) (1,5,4) I chose answer C. 2. A goes
1. 1 answer
2. asked by Jake
3. 832 views
Use scientific notation to divide the following 2 numbers .Express the answer using scientific notation; retain at least3
1. 1 answer
2. asked by sherry
3. 832 views
A dog, with a mass of 8.0 kg, is standing on a flatboat so that he is 26.8 m from the shore. He walks 8.6 m on the boat toward
1. 1 answer
2. asked by Julia
3. 831 views
The Young's modulus for steel is 2x1011 and its rigidity modulus is 8x1010 Nm-2. Find the Poisson's ratio and its bulk modulus.
1. 2 answers
2. asked by pramod
3. 825 views
Write the correct equation for the formation of a white precipitate on mixing together 10 mL each of 1 M calcium chloride, 1 M
1. 1 answer
2. asked by liz
3. 825 views
Which of the following is an example of primary research?A.Searching the Internet for nutritious recipes B. Asking a reference
1. 3 answers
2. asked by Brenna
3. 823 views
Chemistry HELP - Rates of reaction, redox reactions? 10 points?An structural isomer of bromobutane (C4H9Br) can be hydrolysed
1. 0 answers
2. asked by Lola
3. 822 views
Consider the following reaction.3Ca(s) + N2(g) �¨ Ca3N2(s) What is the theoretical yield in grams for the reaction if 10.50 g
1. 1 answer
2. asked by Lisa
3. 808 views
Calculate the change in PH when 6 ml of 0.1 M HCl is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in
1. 2 answers
2. asked by Mima
3. 800 views
While Carmen is at the park with her family, she walks up to a wishing well. She throws a penny down the well, and she hears a
1. 1 answer
2. asked by URGENT - HELP ME
3. 794 views
Suppose that a police car on the highway is moving to the right at 26 m/s, while a speeder is coming up from almost directly
1. 1 answer
2. asked by linds
3. 793 views
In a reaction vessel, the following reaction was carried out using 0.250 mol of NH3(l) and 0.100 mol of N2(g).4NH3(l) + N2(g)
1. 1 answer
2. asked by Lisa
3. 790 views
Use the 68-95-99.7 rule to solve: The amount of Jen's monthly phone bill is normally distributed with a mean of $48 and a
1. 0 answers
2. asked by Jeremiah
3. 784 views
A box of mass m=1.5 kg is attached to a spring with force constant k=12 and suspended on a frictionless incline that makes a 30
1. 1 answer
2. asked by Jake
3. 771 views
Hydrogen and oxygen react to produce water according to the equation below.2 H2 + O2 2 H2O How many liters of hydrogen at STP
1. 1 answer
2. asked by marie
3. 771 views
What is the difference between cash basis and accrual basis accounting? Why do accrual-basis financial statements provide more
1. 0 answers
2. asked by Mar
3. 768 views
The Young's modulus for steel is 2x1011 and its rigidity modulus is 8x1010 Nm-2. Find the Poisson's ratio and its bulk modulus.
1. 2 answers
2. asked by pramod
3. 762 views

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